# 1、安装第三方依赖包
# pip install numpy

# 2、修改pip安装源
# pip config set global.index-url https://mirrors.aliyun.com/pypi/simple

# 3、指定源安装依赖
# pip install pandas -i https://mirrors.aliyun.com/pypi/simple


# 安装读取mysql的依赖
# pip install pymysql

# 安装jupyter notebook
# pip install jupyter

# 导包
import numpy as np

print(np.sum([1, 2, 3, 4]))
